- Ask a related questionWhat is a related question?A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
I have an TUSB4041PAP evaluation board. I am currently designing - using "TUSB4041AI"- which is going to use the USB bus for communication and programming. The ground connector on the USB will be tied to the board ground, and the D+ and D- lines will go to the usb-port of the microcontroller.
What I want to know is what to do with the USB VBUS line (pin 16 on TUSB4041AI). I have no need for the board to be running off of the 5v USB power, it will always be connected to an external power supply of 3.3V (generated from external 10.8-12.6V). However I have read that the VBUS line may be important for communications, so I do not want to leave it floating, as that may make the communications inoperable.
What is the best thing to do with the VBUS line in a situation like this?
